From db7f3496dd4485149c68912677f231dc434824b7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=8D=9C=E9=83=A8=E6=98=8C=E5=B9=B3?=
 <shyouhei@ruby-lang.org>
Date: Mon, 6 Jul 2020 11:51:53 +0900
Subject: [PATCH] nobody uses the return value of vm_push_frame

Surprised to see such a waste of time in this super duper hot path.
---
 vm_insnhelper.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/vm_insnhelper.c b/vm_insnhelper.c
index f2cab2f4b5..c98dfa87e7 100644
--- a/vm_insnhelper.c
+++ b/vm_insnhelper.c
@@ -287,7 +287,7 @@ vm_check_canary(const rb_execution_context_t *ec, VALUE *sp)
 #define vm_check_frame(a, b, c, d)
 #endif /* VM_CHECK_MODE > 0 */
 
-static inline rb_control_frame_t *
+static void
 vm_push_frame(rb_execution_context_t *ec,
 	      const rb_iseq_t *iseq,
 	      VALUE type,
@@ -370,8 +370,6 @@ vm_push_frame(rb_execution_context_t *ec,
         }
     }
 #endif
-
-    return cfp;
 }
 
 /* return TRUE if the frame is finished */